I've used the ATIK EFW2 USB Electronic filter wheel on a few occasions. It's a great piece of engineering, simple but very effective. It's easy to set up, easy to maintain, works very well and easy to adjust. I prefer one shot colour photography and will likely not get into mono photography for some time, [...] Read More

In addition to IDAS LPS filters from Hutech (in this post) SkySlab has used Astronomik CLS light pollution filters. SkySlab’s site does not necessarily need a light pollution filter (yet!) but it has the excellent effect of colour-correcting images. Here’s the link: http://www.optcorp.com/ak-cls-t-cls-light-pollution-filter-t-threads.html It looks like this: I have read posts saying that a 3mm […]

There's lots on the Internet about how filters work. SkySlab recently swapped out an IDAS light pollution (LP) filter with a standard IR filter that comes with the QHY. A lot of QHY8 owners complain that the colour reproduction when producing CCD images is not accurate. This is true if you use the standard IR [...] Read More